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利用角度知识,可以较为简明的解决有关钟面问题,把分针和时针看成是有公共端点的线段、则它们可构成角,这时分针旋转一周成周角,
Using knowledge of angles, the problem of clock face can be more concisely solved. The minute and hour hands can be regarded as line segments with common endpoints. Then they can form angles. At this time, the minute hand rotates once every week,